When I have records with the SAME DATE STREAM_DD_DT, SAME STREAM_DD_ORIG_CD, SAME STREAM_DD_DEST_CD, and SAME PROD_CD, I need to Aggregate those records getting the SUM of their corresponding VOLUME AND WEIGHT, so I will end up with ONLY one Record for a Specific Date with the Same Origin Code, Destination Code and Prod Code.

Example of 2 records to be aggregated, they have same date 8/17/2007, Orig BERTH1, dest D18, prod KJ1-1: